Caller-ID.co is the internet's first free Caller ID service. If somebody called you and you're trying to find out who owns the number, you've come to the right place. You can immediately search our up-to-date database. Simply enter the number that called you, and we provide the name ("caller identification") registered to the phone number. Our service works for the entire United States and Canada, and we are adding more countries soon. Our caller identification is 100% reliable information directly received from our telephone company partner.

Below are examples of how to type the number you are looking for into your web browser. You may also click on a number below to get the caller ID. By proceeding beyond this point, you agree to the Terms & Conditions and Privacy Policy of usage for Caller-ID.co.

About our free web caller ID service

Caller ID goes by different names, such as CID, calling line identification (CLID), calling number delivery (CND), calling number identification (CNID) or calling line identification presentation (CLIP). It is a service provided by the telephone company, and works with older analog phone systems and most new voice over Internet Protocol (VoIP) systems. It simply transmits a caller's number to the called party's telephone equipment during the ringing signal, or when the call
is being set up but before the call is answered. When available, caller ID also
provides a name associated with the calling telephone number. The information made available to the called party may be displayed on a telephone's display, or
a separately attached device. Until caller-id.co was developed, to view this information you needed a Caller ID receiver, a compatible phone, and a subscription
to Caller ID service from your telephone operator. Some telephone operators charge as much as $10 per month for Caller ID. That's no longer necessary - you may
now lookup the caller ID after the call by using our free service.

Caller ID is particularly useful to track down or limit the impact of tele-marketers, pranksters, and other nuisance callers.